Fixed path separator on windows

Author: Avasam

.gitignore

@@ -56,6 +56,7 @@ target/
 
 # Local utility scripts
 analyze.py
+/out/
 
 # Editor backup files
 *~

scripts/create_baseline_stubs.py

@@ -167,7 +167,7 @@ def main() -> None:
         sys.exit(1)
     project, version = info
 
-    stub_dir = os.path.join("stubs", project)
+    stub_dir = os.path.join("stubs", project).replace("\\", "/")
     if os.path.exists(stub_dir):
         sys.exit(f"Error: {stub_dir} already exists (delete it first)")